Does it hurt to run pure antifreeze in hot weather?
Jerry Bransford
well. Pure water is the best coolant of all. Antifreeze helps
lubricate the water pump, keeps the water from freezing in winter, and
helps keep things corrosion free, but it actually doesn't cool as well
as pure water. A 50:50 coolant/water ratio is the right way to go.
Jerry
Michael Malone wrote:
>
> Does it hurt to run pure antifreeze in hot weather?
--
Jerry Bransford
PP-ASEL KC6TAY
The Zen Hotdog... make me one with everything!
Geezer Jeep: http://www.jjournal.net/jeep/gallery/JBransfordsTJ/
Magic2626
>
Yes it does not transfer heat well.... use 30% to 70% antifreeze max! 50%
antifreeze 50% water is a typical mix.
Too much antifreeze and the silicates can drop out of suspension and muck
things up.
Huff
much quicker than if mixed with water.
Jerry Bransford
system a few years ago. After clogging the radiator up a few times with
mineral deposits so badly it needed rodding out, I figured $2 worth of
demineralized water from my grocery store was worth eliminating $200 in
future radiator repairs!
Jerry
Jerry Bransford wrote:
>
> Don't run pure antifreeze... it doesn't hurt but it won't cool nearly as
> well. Pure water is the best coolant of all. Antifreeze helps
> lubricate the water pump, keeps the water from freezing in winter, and
> helps keep things corrosion free, but it actually doesn't cool as well
> as pure water. A 50:50 coolant/water ratio is the right way to go.
>
> Jerry
>
> Michael Malone wrote:
> >
> > Does it hurt to run pure antifreeze in hot weather?
>
phi
from boiling out
--={Flyer}=--
than when mixed with water.
Tom Flyer
To respond via e-mail, remove the '!' from the address.
Jeffrey P. Zurio
distilled water is only .50 a gallon at walmart. coolant is best at a
50/50 mix in the warm months.
also, using the green stuff in an aluminum block engine is not too
good. the blue (old vw) or orange (dexcool) is VERY good.
Coby S. Hughey
overheat.
In article <0m8ujsotfpede2f4m...@4ax.com>, mbma...@home.com
says...
Ivan
Yes adding antifreeze to water increases the vapor pressure. This in turn
raises the boiling point (and as everyone will agree upon, depresses the
freezing point).
Knew that general chem class would come in handy Jeeping.
OBPointlessChemistry: Due to the hydrogen bonding in water (how it
increases volume when it freezes), theoretically increasing pressure would
depress the boiling point. (Probably not much, but still.)
Ivan
red_...@nospam.hotmail.com
remove nospam to reply
"phi" <ptll...@colla.com> wrote in message
news:393F2B49...@colla.com...
> i heard that the antifreeze raises the boiling pt of water which keeps it
> from boiling out
>
> Jerry Bransford wrote:
>
> > Don't run pure antifreeze... it doesn't hurt but it won't cool nearly as
> > well. Pure water is the best coolant of all. Antifreeze helps
> > lubricate the water pump, keeps the water from freezing in winter, and
> > helps keep things corrosion free, but it actually doesn't cool as well
> > as pure water. A 50:50 coolant/water ratio is the right way to go.
> >
> > Jerry
> >
> > Michael Malone wrote:
> > >
> > > Does it hurt to run pure antifreeze in hot weather?
> >
Jerry Bransford
pressurized.
Jerry
Huff
straight water too. This is why when I go camping at high altitude my spaghetti
comes out all gooey....lower air pressure = lower boiling point = colder water
for my noodles.
Hoodoo
wrote:
>What keeps it from boiling is the fact that the cooling system is
>pressurized.
Which if I remember correctly, every pound of pressure of a radiator
cap raises the boling point three degrees; therefore, a 15-pound
radiator cap raises the boing point 45° higher.
--
================
»òó«»òó«»òó«»òó«
¤©®¤Hoodoo¤©®¤
«òó»«òó»«òó»«òó»
Remove the obvious pest deterrent for personal replies.
Roger Brown
>
> Yes. Antifreeze doesn't hold or transfer heat very well, and you'd
> overheat.
>
> In article <0m8ujsotfpede2f4m...@4ax.com>, mbma...@home.com
> says...
> >
Unless you are running a non-aqueous cooling system, like Evans, in which case
pure anti-freeze is used, but with higher flow rates due to the lowered heat
transfer properties:
--
Roger Brown
"If Chewbaca lives on Endor, you must acquit! The defense rests."
André Maritz
drink there. Water boils at 100C at the coast, but where I live it
boils at 95 C due to the altitude.
Huff wrote:
>
> Higher pressure raises the boiling point, but antifreeze boils higher that
> straight water too. This is why when I go camping at high altitude my spaghetti
> comes out all gooey....lower air pressure = lower boiling point = colder water
> for my noodles.
>
> Jerry Bransford wrote:
>
> > What keeps it from boiling is the fact that the cooling system is
> > pressurized.
> >
--
André Maritz
Did you ever think, when you eat Chinese that the meat's not pig or
chicken, but a fat siamese?
Dale Anderson
<the...@ananzi.co.za> wrote:
>Whenever I go the the coast, I burn my lips on the first cup of coffee I
>drink there. Water boils at 100C at the coast, but where I live it
>boils at 95 C due to the altitude.
Yeah, a three minute soft boiled egg takes 6 minutes here...
Dale Anderson
spec...@frontier.net
Durango, Colorado
rick
classes and physics class together to get the right answer here.
first, straight water no matter where you are at boils at a lower temp
than a 50-50 mix H2O and antifreeze. straight H2O should only be used as
a trail emergency measure to get you home. depending on where you are
(elevation) the exact temp either boils at varies like is being stated.
second, straight antifreeze does not cool well in the avg car system.
may be fine for gordon or john force and the boys at the track and the
hi-tech systems they run but not a reg car. reg cars need the 30%-50%
H2O mixed in to change the chem makeup to a better one. it will freeze
at a much lower temp 70% anti freeze mix. and boils at a much higher
temp with a 50% anti freeze mix. read the back of the bottle and its
temp ranges. and decide if you are going to change it twice a year. or
if the temp range hot to cold where you live, the standard 50%-%50 mix
will do. third, yes newer cars with a proper designed and working
cooling system use the diff pressure points designed into them and the
caps to raise the boiling points. forth, it is a GOOD idea to use the
demineralized water. the less minerals you put in the system, the
better for them not percipitate out and clog things up as the other
poster said. fifth,although you will see three colors of anti freeze out
there. red is OEM japanese (not usually built here) foreign cars most
times. green is the most common you see in mostly everything else built
here. yellowish is the less toxic ($$$) version and lasts a little
longer, that uses something other than the sulfates as an additive. if
you have to have the red OEM stuff, the dealer (they do not even always
carry it) thou is the only place to get it. and not really worth it
since they flush and refill most times with the green stuff. and since
for north america, only two factories (were three one burnt down) make
antifreeze the green or yellowish stuff makes no diff whose bottle it
comes out of. the only diff is the less toxic ($$$) issue of the
yellowish stuff. as for the debate of one is better for aluminum. well
that has gone the way of the dinosaurs. unless you find a jerk selling
very old stuff (formula) at a flea market on the weekend, most all the
produced (formula) in the last ten years is and has on the bottle
somewhere that it is safe (will not react) for aluminum blocks and
cylinderheads and radiator cores. if you have OEM green use it. if you
wish to go the less toxic ($$$) route, use the yellowish stuff it will
not harm your car. but if you have OEM yellowish ($$$) in the car you
must use it when changing it. as your car and its cooling system where
designed to use it and its diff chem (less corrosive to seals)
non-sulfate formula to protect the parts of the cooling system
differently. GM started using it first hence people got the wrong idea
(it is not a dex-cool only formula) dex-cool like dextron I/II/III trans
fluid is a brand name for GM OEM fluid. it is used much the same way the
word JETSKI is used to describe a personal watercraft made by many
makers. but really is the trademark of KAWASKI corp. if you have a ford
your trans fluid is now called mercon I/II/III (same formula as dextron)
and chrysler used their own name version of it too. but chrysler now
has their own special formula blend called ATF+ too used for newer chry
cars and trucks. and one or two forgien cars. different from the rest.
back in the 60's and 70's ford had thier own special formula trans fluid
type F that was used in their cars and some foregin cars
(jaguar/jensen/volvo) that had a borg-warner auto trans too. all the
big name cooling brands (prestone/zerex/etc) have a yellowish version
under many names. all thou press the less toxic theme. and have trees
and earthy or pet friendly design bottles. but it is only slightly less
toxic. so don't go putting it in the dogs water dish unless you plan on
getting rid of the damn pitbull. AND I DONT WISH MAIL FROM MEMBERS OF
THE ASPCA or HUMANE SOCIETY or PETA OK!!!!! sorry this is so long but
somebody had to clear up all this urban legend stuff that all the posts
were starting to produce.
kal
Higher elevation=lower air pressure=higher temperature required for boiling.
I regularly camp in high elevation mountains and it takes a lot longer to
boil water.
Joe
André Maritz wrote in message <39414B80...@ananzi.co.za>...
>Whenever I go the the coast, I burn my lips on the first cup of coffee I
>drink there. Water boils at 100C at the coast, but where I live it
>boils at 95 C due to the altitude.
>
kal
the new GM product DEX COOL. Can you measure it using the same tester used
to measure regular anti-freeze/water ratio tool?
Joe
Roger Brown wrote in message <39414D38...@pisco.engr.sgi.com>...
Bryan Foust
"gases" in during the process of changing the state from liquid to gas. It
still takes longer to reach that boiling point as there is less energy to be
obtained from your fuel as well due to the lower oxygen content of the high
altitude air. Automotive cooling systems are kept under pressure for the
sole intent of raising the boiling point. This allows for the cooling
system to operate more efficiently. Same theory works on the stovetop
pressure cooker.
Bryan
--
1976 AMC Hornet (project)
1983 Volkswagen Rabbit 1.6 L turbodiesel
1988.5 Suzuki Samurai Hardtop
1999 Dodge Ram 2500 Cummins 24 Valve Turbodiesel
"kal" <di...@aol.com> wrote in message
news:otu05.5365$907.1...@newsread2.prod.itd.earthlink.net...
cal...@famvid.com
to cook things in boiling water at altitude than at sea level.
Jerry K
Jerry
Jerry Bransford wrote in message <393DD6B6...@home.com>...
>I started running demineralized water (50:50 with coolant) in my cooling
>system a few years ago. After clogging the radiator up a few times with
>mineral deposits so badly it needed rodding out, I figured $2 worth of
>demineralized water from my grocery store was worth eliminating $200 in
>future radiator repairs!
>
>Jerry
>
>Jerry Bransford wrote:
>>
>> Don't run pure antifreeze... it doesn't hurt but it won't cool nearly as
>> well. Pure water is the best coolant of all. Antifreeze helps
>> lubricate the water pump, keeps the water from freezing in winter, and
>> helps keep things corrosion free, but it actually doesn't cool as well
>> as pure water. A 50:50 coolant/water ratio is the right way to go.
>>
>> Jerry
>>
>> Michael Malone wrote:
>> >
>> > Does it hurt to run pure antifreeze in hot weather?
>>
Randall J.Thomas
transferant as compared to water. 100% water would still be the best
coolant medium, with some kind of lubricant and rust preventative added.
a quart or two of anti-freeze would be fine, however, a readily
available coolant lubricant in place of the anti-freeze would do even
better.
Distilled water is the preferred choice, and the lack of minerals among
other things can be responsible of another 5-10 degrees in heat
transfer.
We set up off-road racing trucks where water temps can soar into the
260+ degree range. There are several cooling additives that will assist
an already optimum operating cooling system, that is still providing
acceptable performance.
Of course, this is for climates above freezing point... this mix should
be replaced with an acceptable 50/50 anti-freeze mix for freezing
situations... still with using distilled water.
Look at the chart towards the bottom of the page...
http://performanceunlimited.com/sales/oiladditives.html
/Randall